﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo01
{
    class Program
    {
        static void Main(string[] args)
        {
            Class1.Test1();
            Class2.Test2();
            Class3.Test3();
            /* int a = 111;
             int b = 12;

             Console.WriteLine("a="+a+ ";b="+b);
             int temp;
             temp = a;
             a = b;
             b = temp;

             Console.WriteLine("a=" + a + ";b=" + b);*/
            
            
        }
    }
}
